Marshall JCM800 2203

Marshall JCM800 2203

Looking for great sounding valves for Marshall JCM800 2203 amplifier? Great – you’ve come to the right place.

Valves for Marshall JCM800 2203 amplifier.

The Marshall JCM800 2203 amplifier uses:

  • 2 x ECC83 preamp valves (also known as 12AX7).
  • 1 x Balanced ECC83 for the phase inverter in position V3.
  • 4 x EL34 matched power valves/power tubes.

We offer two options for this amplifier. You can choose between either the original Marshall EL34 power valves or the JJ EL34 power valves.

If you currently have Marshall valves in your amplifier and love the sound then this is the kit for you. These are original Marshall valves that have been tested and graded at the factory.

Many of our customers are fans of the JJ valve and so we offer a full set of JJ valves as well.

Some Both kits will come with JJ preamp valves.

Order your valves below and hear the difference.

Bring back the power, tone and sparkle to your guitar amplifier. Treat yourself, and your amp, to a brand new set of valves today. 

  • All of our valve kits are carefully picked, fully tested, digitally balanced and matched before despatch.
  • These Selected Premium Grade valves deliver superior tone, power and performance across the range.
  • Fast delivery options. Tracked and fully insured so you can order with total confidence.
  • We have 30 years experience so you are in safe hands.
  • We ship internationally every single day.

Replace the Valves for Marshall JCM800 2203 amplifier.

If you’ve got any questions about replacing the valves for Marshall JCM800 2203 please drop us an email. One of the team will get straight back to you.

We have over 30 years of experience so we are always happy to help.

If you haven’t changed your valves before, please take a look at our very helpful FAQ section.

Here we answer most questions as well as providing loads of useful hints and tips.

About the Marshall JCM800 2203 amp:

This JCM800 re-issue, 2203 model (’81-’84), is one of the most highly respected 100 Watt Marshall® heads. Originally evolving from the ‘Plexi’ head, the JCM800 was one of our first amplifiers to feature a Master Volume control.

The JCM800 2203 remains the essence of simplicity. It has one channel with no Reverb. Its purist-pleasing front panel and distinctive roar set the standard by which all other rock amps were judged. And it is still produced because of continued artist use, and of course by popular demand.

The only modern addition made to the JCM800 2203 is a tonally transparent Series FX Loop.

The Marshall JCM800 2203X Vintage Series 100W Tube Head is the original amp behind Eddie’s famous “brown sound” from the 1981 to 1990 era. It’s still backing some of rock’s greatest including Zakk Wylde and Kerry King. Three ECC83s and four EL34s pump out 100W of that inimitable Marshall overdrive.


  • Inputs: 2 x 2.
  • Output: 100W (RMS).
  • Tubes: 3 x ECC83 and 4 x matched EL34.
  • Dimensions: 750W x 315H x 210D.
Replace the Valves for Marshall JCM800 2203 amplifier. Order today and get your amp sounding better than ever.